Federal direct subsidized loans are based on financial need. The federal government pays the interest during in-school, grace and deferment periods. Federal direct unsubsidized loans are not based on financial need, and the federal government does not pay the interest for these loans. Students may choose to defer interest payments until repayment begins; however, the student is responsible for all interest that accrues.
1 Outdoor air pollution can cause ongoing throat irritation. Indoor pollution â tobacco smoke or chemicals â also can cause a chronic sore throat. Chewing tobacco, drinking alcohol and eating spicy foods also can irritate your throat.  Muscle strain.
Those who use chewing tobacco have an increased risk of: 1  developing gum diseases and gum recession (pulling away of the gum tissue from the teeth); 2  leukoplakia (whitish patches inside the mouth that can become cancerous); 3  abrasion (wearing down) of teeth; 4  staining of teeth; 5  tooth decay; and. 6  tooth loss.